Tucked inside the code for Facebook’s Messenger are clues for how the chat app plans to become a marketplace, including an unreleased feature that lets people use the app to buy things in stores.

Other new features hinted at in the software include “secret conversations,” presumably a reference to encrypted chats, something now available in WhatsApp as well as newer messaging apps like Telegram but not Messenger. People could also sync their calendars in Messenger, judging by what’s in the code viewed by The Information.

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Messenger’s team is also building out new features to spur more sharing between friends. The code shows prompts that say, “New! Share updates throughout the day with only your favorite people” and “New! Share quotes from articles.”

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ExclusiveFacebook Messenger Prepares In-Store Purchase Service

The team at Messenger also appears to be preparing features to make the app a bigger part of users’ lives, like syncing calendars, sharing parts of articles and writing status updates that would typically go in News Feed.